空 U+07a7a 空
Radical: 穴
Decomposition: ⿱穴工
Acjk: 空⿱穴.5工3
Definition: empty, hollow, bare, deserted
绝 U+07edd 绝
Radical: 纟 (糸)
Decomposition: ⿰纟色
Acjk: 绝⿰纟.3色6
Definition: to cut, sever, break off, terminate
后 U+0540e 后
Radical: 口
Decomposition: ⿸𠂋口
Acjk: 后⿸𠂋3口.3
Definition: queen, empress, sovereign; (simp. for 後) behind, rear, after